GLG PARTNERS, INC. (GLG) HAS FILED WITH THE U.S. SECURITIES AND EXCHANGE COMMISSION (THE
SEC) A PRELIMINARY PROXY STATEMENT AND INTENDS TO MAIL A DEFINITIVE PROXY STATEMENT AND OTHER
RELEVANT DOCUMENTS TO GLG STOCKHOLDERS IN CONNECTION WITH THE PROPOSED ACQUISITION OF GLG BY MAN
GROUP PLC THROUGH TWO CONCURRENT TRANSACTIONS: THE MERGER OF A WHOLLY OWNED SUBSIDIARY OF MAN WITH
AND INTO GLG (THE MERGER) AND A SHARE EXCHANGE TRANSACTION IN WHICH CERTAIN GLG STOCKHOLDERS WILL
EXCHANGE THEIR GLG SHARES FOR MAN ORDINARY SHARES. GLG STOCKHOLDERS AND OTHER INTERESTED PERSONS
ARE ADVISED TO READ GLGS PRELIMINARY PROXY STATEMENT, AND WHEN AVAILABLE, AMENDMENTS THERETO AND
THE DEFINITIVE PROXY STATEMENT IN CONNECTION WITH GLGS SOLICITATION OF PROXIES FOR THE SPECIAL
MEETING TO BE HELD TO APPROVE THE PROPOSED MERGER BECAUSE THE PRELIMINARY PROXY STATEMENT CONTAINS
AND THE DEFINITIVE PROXY STATEMENT WILL CONTAIN IMPORTANT INFORMATION ABOUT GLG AND THE PROPOSED
TRANSACTION. THE DEFINITIVE PROXY STATEMENT WILL BE MAILED TO STOCKHOLDERS AS OF A RECORD DATE TO
BE ESTABLISHED FOR VOTING ON THE PROPOSED MERGER. STOCKHOLDERS MAY OBTAIN A FREE COPY OF THESE
MATERIALS (WHEN THEY ARE AVAILABLE) AND OTHER DOCUMENTS FILED WITH THE SEC FROM THE SECS WEBSITE
AT www.sec.gov. A FREE COPY OF THE PRELIMINARY PROXY STATEMENT AND, WHEN IT BECOMES AVAILABLE, THE
DEFINITIVE PROXY STATEMENT ALSO MAY BE OBTAINED BY CONTACTING INVESTOR RELATIONS, GLG PARTNERS,
INC., 399 PARK AVENUE, 38TH FLOOR, NEW YORK, NEW YORK 10022, TELEPHONE (212) 224-7200 AND THROUGH
GLGS WEBSITE AT www.glgpartners.com.

GLG AND ITS DIRECTORS AND EXECUTIVE OFFICERS MAY BE DEEMED PARTICIPANTS IN THE SOLICITATION OF
PROXIES FROM GLGS STOCKHOLDERS. GLGS STOCKHOLDERS MAY OBTAIN INFORMATION ABOUT GLGS DIRECTORS
AND EXECUTIVE OFFICERS, THEIR OWNERSHIP OF GLG SHARES AND THEIR INTERESTS IN THE PROPOSED
TRANSACTION BY READING GLGS PRELIMINARY PROXY STATEMENT AND, WHEN IT BECOMES AVAILABLE, DEFINITIVE
PROXY STATEMENT FOR THE SPECIAL MEETING. A FREE COPY OF THESE DOCUMENTS (WHEN THEY ARE AVAILABLE)
MAY BE OBTAINED FROM THE SEC WEBSITE OR BY CONTACTING GLG AS INDICATED ABOVE.

2

Item 2.02. Results of Operations and Financial Condition.

On August 9, 2010, GLG Partners, Inc. (the Company) released its earnings for the second
fiscal quarter of 2010 and is filing a copy of the earnings release to the Securities and
Exchange Commission as Exhibit 99.1 to this Current Report on Form 8-K.

Attached as Exhibit 99.2 to this Current Report on Form 8-K and incorporated herein by
reference is the Companys investor presentation which, together with the press release, is posted
on the Investor Relations section of the Companys website at www.glgpartners.com. The information
contained in Exhibit 99.2 shall not be deemed filed for purposes of Section 18 of the
Securities Exchange Act of 1934, as amended (the Exchange Act), or incorporated by reference in
any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be
expressly set forth by specific reference in such filing.

The Company presents certain financial measures, such as non-GAAP adjusted net income,
non-GAAP compensation, benefits and profit share (CBP), and non-GAAP weighted average fully diluted
shares, that are not prepared in accordance with U.S. generally accepted accounting principles, or
GAAP, in addition to financial results prepared in accordance with GAAP. See the discussion in the
earnings release under Non-GAAP Financial Measures. The Companys management uses these non-GAAP
financial measures in its evaluation of the Companys core results of operations and trends between
fiscal periods and believes these measures are an important component of its internal performance
measurement process. The Companys management also prepares forecasts for future periods on a
basis consistent with these non-GAAP financial measures. The non-GAAP financial measures the
Company presents may be different from non-GAAP financial measures used by other companies.

Non-GAAP adjusted net income has certain limitations in that it may overcompensate for certain
costs and expenditures related to the Companys business.

Item 8.01. Other Events.

The Companys earnings release attached as Exhibit 99.1
to this Current Report on Form 8-K is incorporated herein by reference.

The Company presents certain financial measures, such as non-GAAP adjusted net income,
non-GAAP compensation, benefits and profit share (CBP), and non-GAAP weighted average fully diluted
shares, that are not prepared in accordance with U.S. generally accepted accounting principles, or
GAAP, in addition to financial results prepared in accordance with GAAP. See the discussion in the
earnings release under Non-GAAP Financial Measures. The Companys management uses these non-GAAP
financial measures in its evaluation of the Companys core results of operations and trends between
fiscal periods and believes these measures are an important component of its internal performance
measurement process. The Companys management also prepares forecasts for future periods on a
basis consistent with these non-GAAP financial measures. The non-GAAP financial measures the
Company presents may be different from non-GAAP financial measures used by other companies.

Non-GAAP adjusted net income has certain limitations in that it may overcompensate for certain
costs and expenditures related to the Companys business.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

99.1

Press Release of the Company dated August 9, 2010.

99.2

Investor Presentation dated August 9, 2010.

3

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly
caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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